if u move the queen to d4, if black din't want go to queen to queen then white rook go to d8 then black bishop take white rook and then white rook take black bishop and check, then black king to e7 and white queen go to d7, checkmate.

if u move the white queen to d4 and black queen din't want to go queen to queen then black queen take the white pawn to h2 then white rook go to d8 and black bishop take the white rook to d8 then white queen take black bishop to d8, check then black king move to e7 and white rook move to d7, checkmate